Scopus İndeksli Yayınlar Koleksiyonu by Institution Author "Pekcan, Önder"
Now showing items 81-91 of 91
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Swelling Kinetics of PAAm-kappa-Carrageenan Composites: A Fluorescence Technique
Evingür, Gülşen Akın; Pekcan, Önder (Taylor & Francis Inc, 2011)The steady-state fluorescence (SSF) technique was introduced for studying swelling of disc-shaped polyacrylamide (PAAm) gels containing various amount of kappa-carrageenan (kappa C). They were prepared by free-radical ... -
Tailoring The Electrical and Optical Properties of Carbon Nanotube Reinforced Transparent Tio 2 Composites by Varying Nanotube Concentrations
Uysal, Bengü Özuğur; Akkaya Arier, Ümit Özlem; Pekcan, Önder (World Scientific Publ Co Pte Ltd, 2019)In the present work multi-walled carbon nanotube (MWCNT)-doped TiO 2 nanocomposite films were synthesized by sol-gel method. The influence of nanotube concentration on the structural electrical and optical properties of ... -
Temperature Dependence of Oxygen Diffusion into Clay-Doped PS Films
Uğur, Şaziye; Yargı, Önder; Pekcan, Önder (John Wiley & Sons Inc, 2010)Fluorescence technique was employed for the measurement of the diffusion coefficient of oxygen into polystyrene (PS) latex/modified Na-activated bentonite (MNaLB) clay composite films. Three different MNaLB content (0 5 ... -
Temperature dependence of oxygen diffusion into polymer/carbon nanotube composite films
Yargı, Önder; Uğur, Şaziye; Pekcan, Önder (Wiley-Blackwell, 2012)This study examines the transport properties of polystyrene (PS)/multiwalled carbon nanotube (MWNT) composite films taking into consideration both MWNT composition and temperature via fluorescence technique. Three different ... -
Temperature Effect on the Elasticity of Acrylamide-n-Isopropylacrylamide Copolymers
Evingür, Gülşen Akin; Pekcan, Önder (Taylor & Francis Inc, 2018)Acrylamide (AAm) - N-isopropylacrylamide (NIPA) copolymers were prepared via free radical crosslinking copolymerization with various weight percentages (wt%) of AAm and NIPA. The temperature dependence of the compressive ... -
Temperature effect on the swelling of PAAm-kappa-carrageenan composites
Evingür, Gülşen Akin; Pekcan, Önder (Wiley-Blackwell, 2012)The steady-state fluorescence (SSF) technique was used for studying swelling of disc-shaped polyacrylamide (PAAm)-kappa-carrageenan (kappa C) composites which were prepared by free-radical crosslinking copolymerization at ... -
Thermal Phase Transitions of Agarose in Various Compositions: A Fluorescence Study
Kara, Selim; Arda, Ertan; Dolastir, Fahrettin; Pekcan, Önder (Springer/Plenum Publishers, 2011)The effect of agarose content on thermal phase transitions of the agarose gels was investigated by using Steady State Fluorescence (SSF) method. Scattered light I(sc) and fluorescence intensity I(fl) were monitored against ... -
Thermal Phase Transitions of IOTA Carrageenan in CaCl2 Solutions: A Fluorescence Study
Tari, Ozlem; Kara, Selim; Pekcan, Önder (Taylor & Francis Inc, 2011)The fluorescence technique was employed to study thermal phase transitions of iota (-) carrageenan (IC) in CaCl2 solution. IC gels underwent coil to double helix (c-h) and double helix to dimer (h-d) transitions upon ... -
Universality in gelation of epoxy acrylate with various photoinitiators: a photo differential scanning calorimetric study
Doğruyol, Zekeriya; Karasu, Feyza; Balta, Demet Karaca; Arsu, Nergis; Pekcan, Önder (Taylor & Francis Ltd, 2008)Photo-differential scanning calorimetric (Photo-DSC) technique was used to study the gelation of P-3038 (epoxy acrylate (EA) 75% and tripropyleneglycoldiacrylate (TPGDA) 25%) in the presence of various thioxanthone-based ... -
Universality of elasticity on PAAM-NIPA copolymer gels
Evingür, Gülşen Akin; Pekcan, Önder (EDP Sciences, 2015)Polyacrylamide (PAAm)-N-isopropylacrylamide (NIPA) copolymers were prepared via free radical crosslinking copolymerization with different molar of NIPA varying in the range between 0 and 2 M. The mechanical properties of ... -
The WS(2)dependence on the elasticity and optical band gap energies of swollen PAAm composites
Evingür, Gülsen Akın; Sağlam, Nafia Alara; Çimen, Büşra; Uysal, Bengü Özuğur; Pekcan, Önder (Sage Publications, 2020)New generation nano-filler polymer composites have many applications including biomedical, electronic and maritime related applications because of their mechanical, electronic and optical properties. The properties of ...